Update README.md

Author: kobylynskyi

README.md

@@ -12,16 +12,30 @@
 
 GraphQL Java Codegen makes it easy to make your Java application to follow a schema-first approach whether it is a server or client application.
 
-
 Following classes can be generated based on your GraphQL schema:
 * Interfaces for GraphQL queries, mutations and subscriptions.
 * Interfaces for GraphQL unions.
 * POJO classes for GraphQL types and inputs.
 * Enum classes for GraphQL enums.
-* Interface Resolvers for GraphQL type fields (e.g. for parametrized fields).
+* Interfaces for GraphQL type fields (e.g. for parametrized fields) aka "Resolvers".
 * Client Request classes for GraphQL queries, mutations and subscriptions.
 
 
+## Features
+* Generate classes in Java, Kotlin or Scala.
+* Recursive schemas lookup by file name pattern.
+* Generate code based on GraphQL schema or GraphQL Query Introspection Result.
+* Generate POJOs with: Builder pattern, immutable fields, `toString()`, `equals()` and `hashCode()`, etc.
+* Flexible API interfaces naming conventions (based on schema file name, folder name, etc)
+* Ability to define custom java package names for model and API classes.
+* Ability to define custom prefix/suffix for model, API, type resolver, request, response classes.
+* Ability to define custom annotations (e.g.: validation annotations for your model classes or based on GraphQL directives)
+* Ability to define custom configuration for Relay support.
+
+
+**For the full list of codegen configs please refer to: [Codegen Options](docs/codegen-options.md)**
+
+
 ## Supported plugins
 
 * Gradle plugin: [graphql-java-codegen-gradle-plugin](plugins/gradle)